feat: fork with location display and event creation
- Show event location on calendar cards when space permits
- Add "+" button to create new events via EDS Python script
- Add event creation dialog with summary, date, time, location,
description and calendar selection
- Add create-event.py script using ECal.Client for EDS integration
- Update en.json and zh-CN.json with new translation keys
- Update manifest and registry to point to forked repository
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>